evacuated some survivors toanatoairbase in sicily. pictures of the siege show gunman rounding up hostages. >> this been worker said terrorists told him you have nothing to do with this. you are algerians and muslims, we only want the foreigners. bp chief executive bob dudley said 14 of the 18 foreign employees are safe. >> we are not able to confirm the circumstances of four of our employees. tragically, we gravely fear that we le about seeing fatalities from this group. >>al jeeron troops discovered heavy machine guns and rocket launchers and grenades. the hostages said the explosioners were wired around their necks. this man was identified as the leader of the attack. he is a lieutenant of newspaper tar, head of an al-qaeda linked group based in north africa. the oil company running the plant said the attackers had the entire refinery booby- trapped and would be days before the clearing-out process is complete. charlie d'agata, cbs news, london. >>> an attempted assassination fails after a gun doesn't go off. the long time leader of the movement for rights and freedoms escaped